Last name Pärnoja (Pärnoja 
) , around the globe, is a very rare cognomen. The last name Pärnoja is characteristic of Northern Europe, particularly Estonia, where it is a rare surname.
| karl pärnoja (b. 1916) |
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erki pärnoja EE (b. 1984) |
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| mihkel pärnoja Estonian politician, EE (b. 1946) |
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| eed pärnoja Estonian chemist, EE (b. 1946) |
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